Running a function on all values of an array

[iceomnia]

Here's the code:

<?php

function changeCase($string, $allupper = false)
{
    $action = (false === $allupper) ? 'ucfirst' : strtoupper;

return $action($string);
}

$fruits = array(0 => 'orange', 1 => 'apple', 2 => 'pear');

foreach ($fruits as $key => $value) {
    $fruits[$key] = changeCase($value, true);
}

print_r($fruits);


?>

What function would replace the foreach loop??? ...Notice the second argument to changeCase function.

[NogDog]

See the [man]array_walk[/man] and [man]array_map[/man] functions.

[iceomnia]

Both of which do not accept a second parameter to be sent to the callback function as an extra parameter. array_walk could do but it requires the data to be used by reference. As you can see above, that's not the behaviour I want - I want a function that will literally replace the foreach loop functionality.

[NogDog]

From the [man]array_walk[/man] page:

If the optional userdata parameter is supplied, it will be passed as the third parameter to the callback funcname.